25kg high quality Pp kraft paper valve bag for packing food

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1.Pp kraft paper bag is eco-friendly
2.Best quality, one by one inspecti
3.Factory direct offer

Competitive price with excellent quality

Q: Duck sauce made of pure aluminum foil vacuum packaging bag or transparent plastic?: I did, I saw, salted duck, beef and other good packaging, is the use of the former.

Q: How do I remove the self-adhesive label affixed to the plastic bag?: On the label with wind, a few minutes to unveil the label, the label will fall together with adhesive. Even at the stubborn stickers with traces of essential balm, and fingernails pull, usually can quickly clean up the traces.

Q: Do vacuum packing bags have to be vacuum packed?: To be exact, vacuum packing bags must have vacuum packaging machines to complete vacuum packaging. If you want to use vacuum packaging bags for non vacuum packaging (i.e. ordinary packing), you can also use them.

Q: What kind of material is the food packing bag in general?: Dry frozen goods, generally cooked with PET/PE., such as high temperature, it is generally nylon composite, CPP, or other composite.

Q: Printing process of packaging bag: If it is cut into pieces, use a special press for packing bags or screen printing.Screen printing, screen opened relatively simple, but the requirements of the substrate surface is relatively smooth, simple process, relatively low cost, but the adhesion of the ink requirements are relatively high.

Q: Is there any identification on the vacuum package?: DOD on demand machine (drop) for short, called ink jet printer. The working principle: the nozzle is made up of several high precision valves. When the word is sprayed, the corresponding valve is opened and closed quickly. The ink is ejected by the constant internal pressure, forming characters or graphics on the surface of the movement.

Q: Antistatic packaging bag with chip: Then anti-static shielding bag, black is conductive electrostatic material, regular 1000 ohm resistance, or is translucent gray, middle layer aluminized bag, play an important role in shielding

Q: Is the color of cement packing bags related to cement?: Portland ash cement, fly ash, silicate sleep and composite Portland cement -- black or blue.The cement packing bags shall clearly indicate the standards of implementation, cement varieties, codes, strength levels, producers' names, production licence marks (QS) and serial numbers, serial numbers, date of packing and net contents.

Q: Should the food packaging bags be labeled with QS markers?: Forty-seventh of the 79 orders of the State Administration of food: forty-seventh the implementation of food quality and safety market access system, must print on their packages or marks before (paste) QS logo. No QS mark shall not be sold out of the factory.

Q: How about the material difference of food packaging bag?: The main contents of food packaging bags are: PVDC (poly partial two vinyl chloride), PE (polyethylene), PA (nylon), EVOH (ethylene / vinyl alcohol copolymer), aluminum film (aluminum +PE), etc.All kinds of materials have different properties and different uses. Generally, food packaging bags are not single materials, and they are usually multilayer compositeThe sausage casing is a single material, PVDC

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